My Paying Ads is a revenue-sharing ad site in the style of My Advertising Pays and Traffic Monsoon. A big advantage is that adpacks start at only $1, so anyone can earn. They have a range of larger adpacks as well, so that you can invest more or reinvest if you wish. So far--about 6 months in--the site is stable and paying.

Surprising system: I invested $5 in adpack and re invested all earnings. I tried the withdrawal process and system informs me I did withdraw more than twice my first investment... How funny it is since I never made a single withdrawal...